Shade-holding mechanism.



P. G. EMERY.

SHADE HOLDING MECHANISM.

APPLICATION FILED SEPT. 10, 1904.

Patented Aug. 25, 1914.

THE Auieiws PETERS cu PHOIO z/n-m. WASHINGTON. u L,

The shank 12 of the PLATO G. EMERY, OF CHICAGO, ILLINOIS.

SHADE-HOLDING MECHANISM.

Specification of Letters Patent.

Patented Aug. 25, 1914.

Application filed september 19, 1904. Serial N 0. 225,027.

To (ZZZ whomtt may concern."

Beit known that I, PLATO G. EMnnY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Shade-Holding Mechanism,

of which the following is a specification.

This invention relates to thatclasslof curtain fixtures in which the friction and antifriction devices are both normally in contact with the frame. r i

The objectof the invention is to provide a simple and inexpensive mechanism which can be readily applied and operated for holding the curtain against its upward tendency and for guiding it evenly in its movement. 1

In the accompanyingdrawings Figure 1 illustrates theinvention partly in section and shows a portion of the curtain. Figs. 2-6, inclusive, illustrate other embodiments. of the invention.

Referring to the drawings, shade stick carried by a curtain 11 which is mounted upon a spring-actuated shade roller not shown) or other suitable means for giving the curtain a constant upward tendency. guide l3is arranged in the end of thestick and a rod 1 1 is screwthreaded or otherwise connected to the shank atone end and provided pinch handle 15 at ,its other end. 16 within the stick operates guide outward into contact withtheframe 7 of the Window,door, or other opening in which the curtain'travels, and this spring may be arranged in the manner shown in Figs. 1 and 5 or in any other suitable manner.

The guide may be cast in one piece or formed out of sheet metal and in the preferred construction illustrated in 1, it ismade hollow. throughout its length for lightness. A lever arm 17 is pivotally mounted 011 a pinlS in each end of the guide and these arms carry anti-friction rollers 19.

Therollers 19 are held constantly in contact with the frame by an elastic or yielding presser device which isshown in Fig. 1 in the form of a single flat spring 20 loosely arranged in the guide with its ends acting upon the rear ends of the levers 17. This spring may be fastened in the guide if found desirable.

It is customary to employ the same mech- 10 is a hollow with a pendant A spring to press the frame. This is conveniently anism at each endof the stick and it will be suflicient to illustrate and describe a single complete mechanism at one end of the stick, as shown in Fig. 1. I do not consider it necessary, however, that the holding inechanism at both ends of the stick should be alike.

In Fig. 2 I have shown two springs 21, as the full equivalent of the single spring 20 in Fig. 1, and they are fastened to the guide at the back thereof. In Fig. 3 the two springs 22 act on the lever arms 23 in front i of their pivots. In Fig. 4 the lever arms 24 are pivoted at 25 on the outside of the guide and are acted upon by springs 26 also fastened to the guide on the outer side thercof. In Fig. 5 the anti-friction rollers are carried by a frame 27 provided with a shank 28, arranged within the guide, and acted upon by spring 29. In F (i the axles 30 of the rollers are arranged :in transverse slots 31 in the sides of the guide sothat the rollers and the guide may move relatively and bodily, and springs 32 are fastened to the back of the guide andbear against the axles of the rollers.

In all of the several embodiments of the invention which I have illustrated in the drawings the anti-friction devices are elastically mounted on and are movable relative to the guide, being constantly pressed outward by a yielding presser device.

Provision is preferably made for limiting the inward movement (toward the pinch handles) of the anti-friction devices to pre vent the fixture from being tilted out of the by arrangingthe antifriction devices so that the i will en a e a salt of the uide c a l a;

In their inward movement. In Figs. 1 and 2 the lever arms carrying the antifriction rollers will engage the back wall of the guide at 17; in Fig. 3 the lever arms will engage the back wall at 23; in Fig. 5 the frame 27 will engage the back wall 27; and in Fig. 6 the spring arms 32 will engage the backwalhat 32. I

The face 33 of the guide constitutes the friction device of the mechanism and is pressed by the spring (16 in Fig. 1 and 34: in Fig. 5) into frictional contact withithe frame to hold the curtain against its upward tendency. The springs acting on the frict-ion devices and the anti-friction devices are independent of each other and these devices accomplished are relatively movable so that the friction the friction devices is accomplished by pressure applied to the pendant handle in the usual manner.

.Vithout limiting myself to the exact construction and arrangement of parts herein shown and described, what I claim and desire to secure by Letters Patent is 1. A shade holding mechanism comprising a stick, an elongated guiding element at the end of the stick to frictionally engage the window frame and guide the shade in its movement, means for pressing the guiding element outward, anti-friction devices adjacent to the ends of said guiding element, and

an element separate from the means pressing the guiding element for pressing said devices outward in the direction of the length of the stick, one of said elements being constructed to limit inward movement of said devices relatively to said guiding element.

2. A shade holding mechanism comprising a stick, a combined guide and friction device at the end of the stick to frictionally engage a window frame, means for pressing said combined guide and friction device out' ward, antifriction devices carried by said device and having a limited movement relative thereto, the inward movement of said anti-friction devices being limited by en gagement with the combined guide and friction device, and other meansindependent of said combined guide and friction device pressing means, for pressing the anti-friction devices outward in the direction. of the length of the stick.

3. A shade holding mechanism comprising a stick, an elongated guide at the end of the stick to frictionally engage a window frame, and anti-friction devices elastically mounted on the friction-guide at the ends thereof to move inwardly and outwardly in the direction of the length of the stick, said friction-guide being constructed to limitthe elastic movementof said anti-friction devices inwardly.

e'. A shade holding mechanism comprising a stick, an elongated guide at the end of the stick to frictionally engage a window frame, and anti-friction devices mounted elastically to swing on the friction-guide at the ends thereof, said friction-guide bemg .frame, yielding means constructed to limit the swinging movement of said anti-friction devices inwardly.

5. A shade holding mechanism comprising a stick, an elongated guide at the end of the stick to frictionally engage a window frame, anti-friction rollers mounted to swing on the friction-guide at the ends thereof and having a limited movement relative thereto, said friction-guide being constructed to limit the swinging movement of said anti-friction devices inwardly, and means for pressing said devices outward.

6. A shade holding mechanism comprising a stick, an elongated guide at the end of the stick to frictionally engage a window frame, means for pressing the friction-guide outward, anti-friction devices at the ends of the friction-guide and having a limited movement relative thereto, said frictionguide being constructed to limit the inward movement of said anti-friction devices, and yielding means for pressing said devices outward. Y V

'7. A shade holding mechanism comprising a stick, an elongated guide at the end of the stick to frictionally engage a window for pressing said friction-guide outward, anti-friction devices at the ends ofthe friction-guide and having a limited movement relative'thereto, said friction-guide being constructed to limit the inward movement of said anti-friction devices, and yielding means for pressing said devices outward.

8. A shadeholding mechanism comprising a stick, an elongated friction guide at the end of the stick, arms adjacent to the ends of said guide and pivotally mounted thereon, means for imparting-a limited inward movement of said arms relative to said guide, anti-friction devices carried by said arms at the ends of the guide, and springs acting upon said arms to press the anti-friction devices outward. V 9. A shade holding mechanism comprising a stick, a guide atthe end of the stick, rigid lever arms adjacent to the ends of said guide and pivotally mounted thereon, antifriction rollers on the outer ends of said arms, and springs acting inward on the inner ends of said arms to press the rollers outward.

* PLATO s. EMERY.

Witnesses \VM. 0. BELT, M. A. Kinnm.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

